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No. 625,2". Patented May l6, I899. G. STUFF.

SUGAR CUTTING MACHINE.

(Application filed July 16, 1898.)

(No Model.) 3 Sheets-Sheet I.

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N0. 625,2IL Patented May l6, I399. G. STUFF.

SUGAR CUTTING MACHINE.

Application filed July 16, 1898.)

3 Sheets$heel 2.

W0 Model.)

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No. 625,2". Patented May l6, I899. G. STOFF SUGAR CUTTING MACHINE.

(Application filed July 16, 1898.)

3 Sheets8haet 3.

(No Model.)

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UNITED STATES PATENT OFFICE.

GUSTAV STOFF, OF BERLIN, GERMANY.

SUGAR-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,211, dated May 16, 1899.

Application filed July 16, 1898. Serial No. 686,172. (No model.)

To all whom it may concern:

Be it known that I, GUSTAV STOFF, a subject of the German Emperor, residing at Berlin, in theEmpire of Germany, have-invented certain new and useful Improvements in Sugar-OuttingMachines, of which the following is a specification.

My invention refers to machines for automatically chopping rods of candied sugar and the like-4. e. cutting them into pieces of certain lengthsthe rods being fed by springpressed rollers to a pair of rotating cutters, each having cutters arranged tangentially for cutting said rods into pieces; and the objects of my invention are, first, to provide an arrangement by which the pressure of the feedrollers may be regulated at pleasure, while the top feed-roller may be raised or lowered, according to the varying diameter of the sugar rod; second, to provide universal joints between the top feed -roller and the shaft driving the same; third, to provide a chute by which the stump or last piece of the sugar rod may be separated from the cut pieces. I attain these objects by the mechanism illustrated by the drawings accompanying this specification.

In the drawings, Figure 1 is a front elevation of the machine, certain parts of which are shown in section. Fig. 2 is a vertical sectional view of the machine, taken on the line 10 0c in Fig. 1. Fig. 3 is ahorizontal sectional view of the machine, taken on the line y 2 in Fig. 1; and Fig. 4 shows in horizontal section the center part of the machine.

Similar letters refer to similar parts throughout the drawings.

A rod of candied sugar 2 or the like is shown in the drawings as passing between the two mating and registering feed-rollers g g (of suitable section) for the purpose of being chopped into pieces of suitable lengths by the rotating cutters m 072. By turning the crank C the shaft 1) is rotated and with it, by means of the pinions h f, also the shaft f. At the end b of the shaft 1) the bottom feed-rollerg (of india-rubber) is fastened. For the purpose of replacing it by another one easily the feed-roller g is mounted upon a sleeve g, that is put on the shaft end I) and there secured bya nut g In a similar manner the top feed-roller g (likewise of india-rubber) is mounted upon a sleeve c, that is put on a short shaft J and secured by a nut g The shaft J is journaled in a sleeve or bearing forming part of an arm 71 that is made in one piece with the rod h. The sleeve g is hollowed out and made to rest and revolve upon the sleeve attached to the arm h To avoid the shaft J being jammed, the sleeve g is prevented from shifting on the shaft J by a pin, as shown, or otherwise, while it is secured by the nut 9 Since the shaft f is journaled in rigid bearings, it is necessary to provide a yielding connection between the shaftfand the shaft J, so as to allow of the latter,with the top feed-roller, being lowered and raised according to the varying diameter of the sugar rod 2. For this reason I employ an intermediate shaft 2', having at both ends cyli ndrical recesses, and I provide the two shafts f and J with ball-like ends 2' and '5, respec-' tively, for fitting into the said recesses of the intermediate shaft 2', in which they are allowed to slide when the shaft J is being raised or lowered. To transmit the revolving motion from the shaftf to the shaft J, their-ends i and t" are provided with pins, as shown, and the two ends of the shaft 7 are each provided with two slots for receiving the said pins. Thus two yielding universal joints are formed between the three shafts f, 2', and J.

The rod h h is arranged to slide in a boxer sleeve 70, while it is prevented from turning by an arm t, parallel to it and sliding in a suitable hole or guideway provided in the frame A of the machine. The rod his pressed downward by a coiled spring 712, introduced in the box or sleeve in and acting at the bottom end upon a shoulder of the rod it, while at the top end it bears against the cap or cover The rod h h is limited in its stroke by any suitable means-for example, by the ring 77?, fixed to the top end of the thinner part h. To regulate the pressure of the two feed-rollers g g, the box or sleeve Z0 is provided with a thread on the outside engaging the female thread of the frame A, so that it may be screwed up or down. The cap or cover]c is therefore adjustable longitudinally of the sleeve 70 and may be secured against movement after adjustment by a screw k engaging both the cap 70 and the sleeve 70. (See Fig. 1.) The cap obviously forms a means for adjusting the tension of the spring 71 The rotating cutters m m, the action of which upon the sugar rod z may be seen in Fig. 4, are driven from the crank G by means of the spur-Wheels a and b the shaft 0, the bevel-wheels c and cl, the spur-wheels (Z and 6 and the vertical shafts'd and e.

The machine is shown as having a support B for the channel 1, in which the sugar rod 2 may be guided; but this arrangement is immaterial.

The pieces cutoff the sugar rod 2 are thrown by the cutters m m on the chute 0 and are thereby conducted to some suitable place. To

separate them from the stumps or ends of the rod 2, I employ a special chute u, attached to the frame A and below the feed-rollers g g. When the end of the sugar rod ,2 is no longer held by the two feed-rollers, it will fall down upon the chute u and slide off.

It will of course be understood that the chute u, as shown in Fig. 2, has its upper or receiving end in a vertical plane passing between the feed-rollers and the cutters, while the chute 0 has its upper or receiving end arranged beyond the cuttersthat is, in the rear thereof.

I have shown the special construction of the two feed rollers whereby they may be replaced by other ones easily; but this construction may be altered according to circumstances. The shafts J and f are shown as having ball-like ends with pins and the intermediate shaft 41 as having recesses at the ends; but instead of this the shafts J and f may have recesses with slots and the shaft 2' may have ball-like ends with pins.

Having fully described this my invention, I declare that what I claim, and desire to se cure by Letters Patent, is

v In a machine for automatically chopping or cutting rods of candied sugarand the like into desired lengths, the combination with the cutting mechanism and a driving-shaft f, journaled in rigid bearings, of a top-feed-roller shaft J, an intermediate shaft 1;, having universal joints for engaging said two shafts J tached to said rod 72, and arranged to slide vertically in a guide for preventing saidrod h from turning, and an externally-threaded- GUSTAV STO FF.

Witnesses:

O. H. DAY, HENRY HASPER. 

